首页|Maternal or post-weaning dietary fructo-oligosaccharide supplementation reduces stillbirth rate of sows and diarrhea of weaned piglets
Maternal or post-weaning dietary fructo-oligosaccharide supplementation reduces stillbirth rate of sows and diarrhea of weaned piglets
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Fructo-oligosaccharides(FOS)are well-known prebiotics that have the potential to improve sow reproductive performance and increase piglet growth.However,previous studies were observed in sole FOS-supplemented diets of sows or weaned piglets and did not consider the sow-to-piglet transfer effect on the performance and diarrhea rate of weaned piglets.This study explores the effects of dietary FOS supplementation on the reproductive performance of sows,and the effects of FOS supplementation at different stages on the growth performance and diarrhea rate of weaned piglets.A split-plot experi-mental design was used with sow diet effect in the whole plot and differing piglet diet effect in the subplot.Fifty-two multiparous sows(223.24±14.77 kg)were randomly divided into 2 groups(0 or 0.2％FOS).The experiment lasted from day 85 of gestation to day 21 of lactation.Reproductive performance,glucose tolerance,placental angiogenesis,and intestinal flora of sows were assessed.At weaning,192 weaned piglets were grouped in 2 × 2 factorial designs,with the main effects of FOS supplemental level of sow diet(0 and 0.2％),and FOS supplemental level of weaned piglet diet(0 and 0.2％),respectively.The growth performance and diarrhea rate of the weaned piglets were analyzed during a 28-d experiment.Maternal dietary supplementation of FOS was shown to reduce the stillbirth and invalid piglet rates(P＜0.05),improve the insulin sensitivity(P＜0.05)and fecal scores(P＜0.05)of sows,increase the abundance of Akkermansia muciniphila(P=0.016),decrease the abundance of Escherichia coli(P=0.035),and increase the isovalerate content in feces(P=0.086).Meanwhile,the placental angiogenesis marker CD31 expression was increased in sows fed FOS diet(P＜0.05).Moreover,maternal and post-weaning dietary FOS supplementation reduced the diarrhea rate of weaned piglets(P＜0.05)and increased the content of short-chain fatty acids in feces(P＜0.05).Furthermore,only post-weaning dietary FOS sup-plementation could improve nutrient digestibility of weaned piglets(P＜0.05).Collectively,FOS sup-plementation in sows can reduce stillbirth rate,perinatal constipation,and insulin resistance,as well as improve placental vascularization barrier.Additionally,maternal and post-weaning dietary FOS sup-plementation reduced the diarrhea rate of weaned piglets,but only FOS supplementation in piglets alone at weaning stage could improve their nutrient digestibility.
Guangdong Provincial Key Laboratory of Animal Nutrition Control,National Engineering Research Center for Breeding Swine Industry,Institute of Subtropical Animal Nutrition and Feed,College of Animal Science,South China Agricultural University,Guangzhou 510642,China
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